Santaman the wool works in *any* climate. Even in the desert or the jungle
It thermo regulates and it's kind to the skin.
I blister easily, so I'm careful about what I put on my feet, but I really do agree with Widu13
We know it's best if the blister is left, but there are times that just to relieve that pain is wonderful (cue blissed out smilie
), and if done carefully then it lets you walk on and home. Moleskin patches can be very effective, but the new hydrowhatever plasters are brilliant, just make sure to use big enough ones.
I found that if it gets desperate and you're out walking here, find some sheeps wool on the fence or walls or heather, pick it clean and pad a light layer of that down inside your sock over the hotspot/blister and it'll ease the whole issue. It's not sterile though so don't use on broken skin. Really good on those little toe rubs. These days two pairs of wool or silk and wool and I have no problems so long as my boots fit properly.
cheers,
Toddy